Fixed boss test to use correct values

Author: mferr11

source/core/src/test/com/csse3200/game/entities/factories/BossEnemyFactoryTest.java

@@ -152,7 +152,7 @@ void bossEnemyResetsToDefaults() {
         // Verify the values have actually been reset to default values
         assertEquals(DamageTypeConfig.None, BossEnemyFactory.getResistance());
         assertEquals(DamageTypeConfig.None, BossEnemyFactory.getWeakness());
-        assertEquals(new Vector2(0.7f, 0.7f), BossEnemyFactory.getSpeed());
+        assertEquals(new Vector2(0.5f, 0.5f), BossEnemyFactory.getSpeed());
         assertEquals("images/boss_enemy.png", BossEnemyFactory.getTexturePath());
         assertEquals("Boss Enemy", BossEnemyFactory.getDisplayName());
     }